Public water system record
Rosemount
Serves Rosemount and Empire, Dakota County, MN · 26,500 people served
Federal records show 1 health-based violation and 1 monitoring/reporting issue for Rosemount in the last ten years. The most serious issue in this window was a Gross Alpha, Excl. Radon and U violation that EPA lists as archived, not resolved.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 0
- Unresolved
- 0
- Archived by EPA
- 1
- Any acute record
- No
- Monitoring issues, last 10 years
- 1
Key facts
- Rosemount draws water from 9 wells (1 of them for emergency, seasonal or other part-time use).
- Highest measured level in the last 10 years: Gross Alpha, Excl. Radon and U, 16.3 pCi/L, federal limit 15 pCi/L (1.1 times the limit), 2025.
- Lead pipe inventory: 0 lead and 791 unknown out of 9,396 service lines.
Check whether Rosemount serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16.3 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
340 | Oct 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
What the violations mean
Gross Alpha, Excl. Radon and U
1 incidentTest results for Gross Alpha, Excl. Radon and U were above the federal limit (a maximum contaminant level violation).
The utility had to notify customers about this violation.
Where the water comes from
Rosemount draws water from 9 wells (1 of them for emergency, seasonal or other part-time use). It also has an emergency connection to Apple Valley.
Emergency or part-time connections to
- Apple Valley Apple Valley, MN
Annual water quality report
Rosemount must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Systems serving 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Minnesota.
Certified drinking water labs by state EPA guidance for private wells